Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
As December commences, the average high-temperature subtly reduces, transitioning from a refreshing 60.1°F (15.6°C) in November to a cool 53.2°F (11.8°C). During the month of December, the temperature generally drops to a low average of 38.5°F (3.6°C).Humidity
The most humid month is December, with an average relative humidity of 80%.Rainfall
In Rosa, in December, during 13.2 rainfall days, 4.29" (109mm) of precipitation is typically accumulated. Throughout the year, there are 180.2 rainfall days, and 42.24" (1073mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In December, it is snowing for 0.8 days. Throughout December, 0.35" (9mm) of snow is accumulated. In Rosa, Alabama, during the entire year, snow falls for 4.5 days and aggregates up to 1.89" (48mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 54min of daylight.On the first day of December, sunrise is at 6:33 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 4:47 pm CST.
Sunshine
In Rosa, Alabama, the average sunshine in December is 4.6h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the average person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in December?
What is the most humid month?
What is the average humidity in December?
How many days does it rain in December in Rosa?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How many hours of sunshine does Rosa have in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Rosa, AL
- Average high temperature in December: 53.2°F
The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (49.1°F).
- Average low temperature in December: 38.5°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (34°F).
Average pressure in December
Rosa, AL
- Average pressure in December: 30.15"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in December
Rosa, AL
- Average wind speed in December: 7.5mph
The windiest months (with the highest average wind speed) are January and February (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in December
Rosa, AL
- Average humidity in December: 80%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Rosa, AL
- Average rainfall in December: 4.29"
The wettest month (with the highest rainfall) is August (4.41").
The driest month (with the least rainfall) is October (2.4").
Average rainfall days in December
Rosa, AL
- Average rainfall days in December: 13.2 days
The month with the highest number of rainy days is July (22.2 days).
The month with the least rainy days is November (10.1 days).
Average snowfall in December
Rosa, AL
- Average snowfall in December: 0.35"
The month with the highest snowfall is January (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Rosa, AL
- Average snowfall days in December: 0.8 days
The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Rosa, AL
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Rosa, AL
- Average sunshine days in December: 16.1 days
The months with the most sunshine days are October and November (18.5 days).
The month with the least sunshine days is July (7.8 days).
Average UV index in December
Rosa, AL
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Rosa, AL
- Average cloud cover in December: 50
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and September (Cloud cover 32).
Average visibility in December
Rosa, AL
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Rosa, Alabama, USA
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